Damper for fireplaces.



No. 697,893. Patented Apr. 5, 1902.,

S. SHAW.

DAMPER FUR FlREPLACES.

(Application filed May 3, 1901.)

(N0 Model.)

WITNESSES- UNITED STATES PATENT OFFICE.

SAMUELSHAW, OF NEWTON, MASSACHUSETTS.

DAM PER FOR FIREPLAC'ES.

SPECIFICATION forming part Of Letters Patent NO. 697,893, dated. April 15, 1902.

Application filed May 3, 1901. Serial No. 58,613. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL SHAW, a citizen of the United States,residing at Newton,

in the county of Middlesex and State of Massachusetts, have inventedcertain new and useful Improvements in Dampers for Fireplaces, of whichthe following is a specification.

My invention relates to improvements in dampers for fireplaces; and itsobjectis to improve the construction of these devices in a manner whichwill be hereinafter more fully set forth.

In the accompanying drawings I have shown in Figure 1 a frontelevationof a portion of a. fireplace broken away in part to show the location ofthe damper, and in Fig. 2 I have shown in transverse section the damperin place,.and at Fig. 3 a view of a portion thereof in longitudinalsection upon the line 3 3 of Fig.- 2.

The object of the improvement is to produce a damper which while setwithin the brick or other setting of the fireplace and in a position toopen and close the smoke-flue may be conveniently operated from theoutside. For this reason I provide the damper pr0per,A,with an arm orprojection B,attached to the damper-shaft a, the end of which is adaptedto engage with a worm O, mounted upon an operating-shaft D, whichextends outwardly through and beyond the fireplacesetting and isprovided at its outer end with an operating-knob E. It will be obviousthat by turning this knob in one direction or the other the worm will beturned, thereby imparting motion through the projection B to thedamper-shaft to open or close the same, as the case may be.

The damper is journaled in the ends of a casing G, located in the flueand having a flange 9, upon which is mounted a hood or casing F, intowhich the end of the dampershaft a, carrying the arm B, extends and inwhich is journaled the worm-operating shaft D, as shown in Fig. 3.

I claim- In a damper, thev combination with a casing having a. flange,of a damper pivoted in said casing and having a shaft projectingtherefrom above the flange, an arm on said shaft, a hood secured to saidflange and ex= tending over the damper-shaft and arm, an operating-shaftjournaled in said hood, and a worm on said operating-shaft within thehood and in engagement with said arm, said operating-shaft having asuitable handle at its outer end.

In testimony whereof I have hereunto subscribed my name this 27 th dayof April, 1901.

SAMUEL SHAW.

Witnesses CHAS. C. KURTZ, ALEX. P. BROWNE.

